Structural, spectroscopic characterization and application of a Co(II) coordination polymer [Co(suc)(bpm)].2H sub(2)O

Abstract

A Co(II) coordination polymer [Co(suc)(bpm)].2H sub(2)O (1) built from succinate (suc) and bipyrimidine (bpm) is synthesized hydrothermally and characterized by different methods. It crystallizes in a monoclinic space group P2 sub(1)/n with an intriguing 3D polymeric architecture. The weak antiferromagnetic (AF) exchange interactions were evinced by Curie Constant (C)=1.803 cm sup(3)mol sup(-1)K and a negative Weiss constant (Phi)=-30.163 K. Type VI adsorption isotherm behavior of 1 at 77 K revealed its non-porous property. Compound 1 was investigated and successfully utilized as an additive in lowering the decomposition temperature of ammonium nitrate (AN) based fuels as demonstrated from TG and DSC experiments performed in nitrogen atmosphere.